/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.commons.imaging.formats.tiff.fieldtypes;

import org.apache.commons.imaging.ImageWriteException;
import org.apache.commons.imaging.common.ByteOrder;
import org.apache.commons.imaging.formats.tiff.TiffField;
import org.apache.commons.imaging.util.Debug;

public class FieldTypeUnknown extends FieldType {
    public FieldTypeUnknown() {
        super(-1, 1, "Unknown");
    }

    @Override
    public Object getSimpleValue(TiffField entry) {
        // Debug.debug("unknown field type. entry", entry.tagInfo.name);
        // Debug.debug("unknown field type. entry.type", entry.type);
        // Debug.debug("unknown field type. entry.length", entry.length);
        // Debug.debug("unknown field type. entry.oversizeValue",
        // entry.oversizeValue);
        // Debug.debug("unknown field type. entry.isLocalValue()",
        // entry.isLocalValue());
        // Debug.debug("unknown field type. entry.oversizeValue",
        // entry.oversizeValue);

        if (entry.length == 1) {
            return entry.valueOffsetBytes[0];
        }

        return getRawBytes(entry);
    }

    @Override
    public byte[] writeData(Object o, ByteOrder byteOrder) throws ImageWriteException {
        if (o instanceof Byte) {
            return new byte[] { ((Byte) o).byteValue(), };
        } else if (o instanceof byte[]) {
            return (byte[]) o;
        } else {
            throw new ImageWriteException("Invalid data: " + o + " ("
                    + Debug.getType(o) + ")");
        }
    }

}
